"They were not," said the voice of Kitty, and Billy paused where he was and stood still. "Bridget does not go about in the wet grass in her stocking feet. Those were Billy's tracks on the porch. I am no Sherlock Holmes, but I can tell you just what he did. He stole down before we were awake, to look for that collar, and he did not find it on the railing where he had left it. Then he saw it where it had fallen and he went down on the wet lawn and got it. Watch him when he comes in to breakfast. He will be wearing a collar, and it will not be the one he wore last night." Billy turned and tip-toed softly up the stairs again, undoing his tie as he went. When he came down his neck was neatly, but informally swathed in a white handkerchief. Three pairs of eyes watched him as he entered, but he faced them unflinchingly. Mr. and Mrs. Fenelby let their eyes drop before his glance, but Kitty met his gaze with a challenge. There was nothing of treachery in her face, and yet she had sought to betray him. He looked at her with greater interest than he had ever known himself to feel regarding any girl, and as he looked he had a startled sense that she was fairer than she had been, and he caught his breath quickly and began to talk to Mrs. Fenelby. "Tom," he said, after breakfast, as Mr. Fenelby was getting ready to leave to catch his train, "I think I'll walk over to the station with you. I have something I want to say to you." "Come along," said Mr. Fenelby. "But you will have to walk quickly. I have just time to catch my train." "Did you notice anything peculiar about Miss Kitty this morning?" asked Billy, when they had left the house. "Peculiar?" said Mr. Fenelby. "No, I don't think so." "Well, I don't want to make trouble, Tom," said Billy, "but I think I ought to speak about this thing. If it wasn't serious I wouldn't mention it at all, but I think you ought to know what is going on in your own house. I think you ought to know what kind of a girl Miss Kitty is, so that you can be on your guard. Now, you went down to get that collar for me, didn't you?" "I wish you wouldn't mention that," said Mr. Fenelby with some annoyance.